Cited by 998Connective Tissue Growth Factor ResearchWound Healing and TreatmentsTelomeres, Telomerase, and Senescence

The matricellular protein CCN1 induces fibroblast senescence and restricts fibrosis in cutaneous wound healing

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Jun, Joon-Il, Lau, Lester F.·2010·Nature Cell Biology

Abstract

Cellular senescence is a recognized mechanism of tumour suppression; however, its contribution to other pathologies is not well understood. We show that the matricellular protein CCN1 (also known as CYR61; cysteine-rich protein 61), which is dynamically expressed at sites of wound repair, can induce fibroblast senescence by binding to integrin α6β1 and the heparan sulphate proteoglycans (receptors involved in cell adhesion). CCN1 induces DNA damage response pathways and activates p53 and the RAC1–NOX1 complex, which generates reactive oxygen species (ROS). This results in the ROS-dependent activation of the p16INK4a/pRb pathway, leading to senescence and concomitant expression of antifibrotic genes. Senescent fibroblasts accumulate in granulation tissues of healing cutaneous wounds and express antifibrotic genes in wild-type mice. These processes are lost in knockin mice that express a senescence-defective Ccn1 mutant, resulting in exacerbated fibrosis. Topical application of CCN1 protein to wounds reverses these defects. Thus, fibroblast senescence is a CCN1-dependent wound healing response in cutaneous injury that functions to curb fibrosis during tissue repair.

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Crossref · 10.1038/ncb2070

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  • In skin, senescent cells clearly promote optimal wound healing.

    “In the skin, for example, senescent cells clearly promote optimal wound healing (149).”

    From Aging, Cellular Senescence, and Cancer (2013) · cites this paper as [149]

    The Results section reports that CCN1-induced senescent fibroblasts restrict excessive collagen deposition in healing mouse skin wounds, supporting a beneficial role. But it also reports that wounds with markedly fewer senescent cells closed somewhat faster, so the paper supports reduced fibrosis rather than an unqualified claim that senescent cells promote optimal wound healing overall. Page numbers are unavailable in our copy. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • In a mouse model of skin wounding, the injury induced cellular senescence, most likely in resident fibroblasts.

    “Likewise, in a mouse model of skin wounding, the injury again induced cellular senescence, most likely in resident fibroblasts.”

    From Aging, Cellular Senescence, and Cancer (2013) · cites this paper as [149]

    The Results section reports that senescent cells accumulated in healing mouse wounds and identifies them as myofibroblasts; fibroblasts isolated from the wounds also showed senescence. It does not establish that those fibroblasts were resident cells rather than cells of another origin. No page number is available in our copy. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • CCN1/CYR61, an ECM protein that mediates senescence induction in the liver, promotes fibroblast senescence during cutaneous wound healing and limits skin fibrosis.

    “Cellular communication network factor 1 (CCN1; also known as CYR61), an ECM protein that mediates the induction of cellular senescence in the liver, promotes senescence in fibroblasts during cutaneous wound healing, thus limiting skin fibrosis147.”

    From Cellular senescence in ageing: from mechanisms to therapeutic opportunities (2021) · cites this paper as [147]

    The Introduction and Results identify CCN1 as CYR61 and report that it induces fibroblast senescence during cutaneous wound healing, curbing fibrosis. The paper does not establish that CCN1 mediates senescence in the liver: its Discussion says whether CCN1 is required for senescence in other organs is unknown. Page numbers were not available in our copy. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Cellular senescence has beneficial roles in tissue remodelling during embryogenesis and wound healing.

    “Cellular senescence, a stress-induced irreversible growth arrest often characterized by p16 Ink4a expression and a distinctive secretory phenotype, prevents the proliferation of preneoplastic cells and has beneficial roles in tissue remodelling during embryogenesis and wound healing.”

    From Naturally occurring p16Ink4a-positive cells shorten healthy lifespan (2016) · cites this paper as [6]

    The Discussion reports that CCN1-induced fibroblast senescence dampens fibrosis during cutaneous wound healing, supporting a beneficial role in tissue repair. Our copy does not address a beneficial role for senescence in tissue remodelling during embryogenesis (searched: embryogenesis, embryonic development). No page numbers are available in the indexed copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Presence of senescent human-derived cultured cells limits fibrosis during skin wound healing.

    “The presence of senescent human- derived cultured cells limits fibrosis during skin wound healing 9”

    From Senescence and cancer — role and therapeutic opportunities (2022) · cites this paper as [9]

    The Results section ('CCN1-regulated senescence restricts fibrosis in cutaneous wound healing'; page unavailable) reports that senescent cells accumulated in mouse wounds and that CCN1-induced senescence curtailed collagen deposition. The paper also studied cultured human fibroblasts, but it does not show that those human-derived cultured cells were present in healing wounds or limited fibrosis there. (LLM, conf=0.90)

    Experimental — accuracy not yet measured

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Authors
Jun, J.-I., & Lau, L. F.
Affiliations
University of Illinois Chicago (US)
Corresponding author
Lau, Lester F.
Venue
Nature Cell Biology
Published
2010-06-06
Volume
12
Issue
7
Pages
676-685
ISSN
  • 1465-7392 (ISSN-L)
  • 1476-4679
OpenAlex
W2052388837
Cited by
998
References
72
Citations by year
2026: 62 · 2025: 51 · 2024: 82 · 2023: 87 · 2022: 79 · 2021: 93 · 2020: 83 · 2019: 72 · 2018: 65 · 2017: 56 · 2016: 62 · 2015: 53 · 2014: 55 · 2013: 38 · 2012: 29
FWCI
12.50
Type
journal article
Language
en
Update notices
erratum (2010-12-01)
Open access
Locations
  • Nature Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Cancer Institute (R01CA046565)
  • National Institute of General Medical Sciences (R01GM078492)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Connective Tissue Growth Factor Research
  • Health Sciences › Medicine › Rehabilitation › Wound Healing and Treatments
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
Keywords
CYR61, cellular senescence, fibroblast senescence, skin wound healing, fibrosis, alpha6beta1 integrin, heparan sulfate proteoglycans, DNA damage response, p53, reactive oxygen species, granulation tissue
MeSH terms
Animals, Cell Line, Collagen, Fibroblasts, Humans, Mice, Inbred C57BL, Microscopy, Fluorescence, Wound Healing, Blotting, Western, Cellular Senescence, Reactive Oxygen Species, Reverse Transcriptase Polymerase Chain Reaction, RNA Interference, Cell Proliferation, Mice, Cysteine-Rich Protein 61

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